| Year | 1940 |
| Date | 05-Dec |
| Volume | 83 |
| Issue | 2,065 |
| Page | 439 |
| Category | Railway |
| Part | 6 |
| Title | Railway Signals. Standard Semaphore Types used in Pre-grouping Days |
| Author | O.S.Nock |
| Notes | South Eastern and Chatham Railway, distant signal with "Welch" distinguishing lamp at a London station, typical signal |